Cowhey, P. F., & Richards, J. E. (2002). Deregulating and Liberalizing the North-American Telecommunications Market: Explaining the US-Approach.

Cowhey, Peter F., and John E. Richards. Deregulating and Liberalizing the North-American Telecommunications Market: Explaining the US-Approach. Hamburg, 2002.

Cowhey, Peter F., and John E. Richards. Deregulating and Liberalizing the North-American Telecommunications Market: Explaining the US-Approach. 2002.